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exercise 10 by how many per cent did real estate prices increase in denmark from 1998 to 2006 according to the table? change in real estate prices (%) country from 1998 to 2007 from 2006 to 2007 denmark 231 13.2 canada 103 2.8 south africa 121 7.4 indonesia 167 11.5 a) 192% b) 201% c) 202. 8% d) 204% e) 292% solution: this type of question is quite uncommon in real life, but it sometimes appears in epso tests. is it possible to find out the percentage change between two completely unknown figures? well, with a little help of the magic of numbers… yes, it is. in some books and online platforms, you can find a method to solve these questions by using a system of two equations, corresponding to the two unknowns (x and y) that we have to face here. their method is probably more orthodox (or close to pure principles of maths), but i think that it is harder to be followed -and applied- by candidates not handling with ease 66
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